Offshore structure

Patent metadata

Field	Value
Publication number	US-11008727-B2
Application number	US-201816628148-A
Country	US
Kind code	B2
Filing date	Jul 19, 2018
Priority date	Aug 11, 2017
Publication date	May 18, 2021
Grant date	May 18, 2021

Abstract

An offshore structure having a foundation structure, wherein the foundation structure has at least a first and a second profile, the first profile is designed as a pile and the second profile is designed as a pile sleeve, the second profile encloses the first profile over a penetration length, wherein an interspace is formed between the first and the second profile, the interspace has a casting compound filling over the total penetration length, shear elements are provided on the first and/or the second profile, the shear elements extend into the interspace and effect an axial load dissipation into the casting compound filling, the shear elements are provided only over a first partial length of the penetration length, the first partial length is between 65 and 90% of the total penetration length and a second partial length is free of shear elements, wherein the second partial length forms the upper length of the penetration length in the installed position.

First claim

The invention claimed is:

1. An offshore structure comprising:
a foundation structure, wherein the foundation structure has at least a first and a second profile,
wherein the first profile is configured as a pile and the second profile is configured as a pile sleeve, and the second profile encloses the first profile over a penetration length,
wherein an interspace is formed between the first profile and the second profile, the interspace has a casting compound filling over the penetration length,
wherein shear elements are provided on the first profile and/or the second profile, the shear elements extend into the interspace and effect an axial load dissipation into the casting compound filling, the shear elements are provided only over a first partial length of the penetration length, the first partial length is between 65% and 90% of the penetration length and a second partial length is free of shear elements, wherein the second partial length forms an upper length of the penetration length in an installed position, wherein

(a) the first profile and/or the second profile have/has an adhesion-reducing coating over the second partial length on a side facing the interspace; and/or
(b) a layer of an elastic material is provided between first profile and/or the second profile and the casting compound filling over the second partial length of the penetration length.

2. The offshore structure according to claim 1 , wherein the second partial length has a length which is at least equal to a width of the interspace.

3. The offshore structure according to claim 1 , wherein the casting compound filling comprises a first casting compound over the first partial length of the penetration length and a second casting compound over the second partial length of the penetration length, and the second casting compound has a higher tensile and/or a higher compressive strength than the first casting compound.

4. The offshore structure according to claim 3 , wherein the second casting compound has a higher ductility than the first casting compound.

5. The offshore structure according to claim 1 , wherein the casting compound filling is fibre-reinforced and/or strengthened over the second partial length of the penetration length.

6. The offshore structure according to claim 1 , wherein the casting compound filling receives an insert component over the second partial length, wherein the insert component has a higher tensile and/or a higher compressive strength than the casting compound.

7. The offshore structure according to claim 6 , wherein the insert component is selected from a group of insert components comprising prefabricated concrete elements, steel profiles and polymer construction materials.

8. The offshore structure according to claim 1 , wherein the interspace is at least partially closed on an upper end side in the installed position.

9. The offshore structure according to claim 1 , wherein the pile sleeve has an upper, inwardly projecting collar which partially covers an upper end side of the interspace in the installed position.

10. The offshore structure according to claim 1 , in which the first profile or the second profile has fastened thereto a reinforcement which extends over the second partial length of the penetration length.

11. The offshore structure according to claim 1 , wherein the shear elements are selected from a group comprising shear ribs and/or shear webs.

Assignees

• Innogy Se

Inventors

• Daum Karlheinz
• Bartminn Daniel
• Linnemann Claus
• Billington Colin

Classifications

• E02D2300/002

  Concrete · CPC title

• E02B2017/0065

  Monopile structures · CPC title

• E02D27/425 Primary

  specially adapted for wind motors masts (wind motors per se F03D1/00) · CPC title

• E02D5/48

  Piles varying in construction along their length {, i.e. along the body between head and shoe, e.g. made of different materials along their length (E02D5/50, E02D5/52 take precedence)} · CPC title

• E02D2250/0023

  Cast, i.e. in situ or in a mold or other formwork · CPC title